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Thread: How do I know which thermostat to use?
          
   
   

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  1. #1
    Oli
    Oli is offline CHR Member Visit my Photo Gallery
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    How do I know which thermostat to use?

     



    What is the difference in running a 170 degree thermostat and a 195 degree thermostat. Will the 170 degree make the engine run at a cooler temp? I have a 327.

  2. #2
    460_fan's Avatar
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    Yes
    460_Fan

  3. #3
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    SBC
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    That defines the temperature at which the thermostat will open.
    Theoretically the 170 will run cooler than the 195.

    But there are lots of other variables that will define the actual operating temp.

    For instance a low water level or restricted flow will run hotter no matter what thermostat you have.

    Bert
    There is no limit to what a man can do . . . if he doesn't mind who gets the credit. (Ronald Reagan)

  4. #4
    Oli
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    Originally posted by SBC
    That defines the temperature at which the thermostat will open.
    Theoretically the 170 will run cooler than the 195.

    But there are lots of other variables that will define the actual operating temp.

    For instance a low water level or restricted flow will run hotter no matter what thermostat you have.

    Bert
    How do I chek for restricted flow.

    I have replaced

    Radiator
    Thermostat
    Fan Clutch
    added extra electric fan
    water pump

  5. #5
    SBC's Avatar
    SBC
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    Originally posted by Oli
    How do I chek for restricted flow.

    I have replaced

    Radiator
    Thermostat
    Fan Clutch
    added extra electric fan
    water pump
    And its still running hot?
    There is no limit to what a man can do . . . if he doesn't mind who gets the credit. (Ronald Reagan)

  6. #6
    FMXhellraiser's Avatar
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    You can run a 160 or 170 in summer and 180 in winter. I run a 180 all year long. I just got a new big 3 core radiator and it runs cool. I run only a 302 by the way.
    www.streamlineautocare.com

    If you wan't something done right, then you have to do it yourself!

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